Patent US2663143A successfully refreshed from Google Patents.
US2663143A
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Materials handling apparatus
Assignee: Joy Manufacturing Co
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Filing: 1949-05-11
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Granted: 1953-12-22
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Expires: 1969-05-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Joy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:06
CPC Classifications
B; B65; B65G; B65G27/00; B65G27/10; B65G27/12; B65G27/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US897676A
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FR522933A
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US1685760A
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US2214755A
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US2214817A
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US2290479A
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US2318065A
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US2408303A
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US2436986A
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US2480527A
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US2571359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |